Having just been thru the MSP buying process (and research I did prior to buying one)….some possible question to ask
How many owners (fewer is better)
If the current owner moded the car ask them what mods they made. (check out the “what Mods for the Daily Drive Post” they should fall in line with that for the most part).
If they boosted it ask them what boost they ran (more than 10 psi beware, if stock internals)… if it still runs smoothly you could probably claim that they didn’t break anything, but its a lot of stress on the stock internals, clutch and tranny..
Don’t know what the smog laws are in your area, but make sure that you have the stock parts just in case, or it is already Smog legal (ask when it was last smogged… a bit deal in CA where I live). Lack of Cats could be a particular PITA.
Talk with the owner and find out how they take car of their cars (you should be able to pick up on that after some discussion).
Dealers will ask seeming crazy prices $11,000 (for a 50-60k car), and they claim to get it in my neck of the woods… don’t know who is paying that kind of money. But private parties seems to fetch $7,000 ish more or less. Be patient… Mine has 102K, but it has the mods I would do anyway (minimal, like aftermatket Side Mounted Intercooler, hardpipes, BPV and a boost gauge). It also had an aftermarket LSD differential and a Stage 1 clutch, all nice daily driver mods; and I paid less than $6k. Most of all take it for a drive (a couple different ones if you can), and do lean into it enough to see how it responses to boost, and verify that the turbo is health and doesn’t make any strange noises.